科学保养“三滤” 延长发动机使用寿命

本文通过阐述"三滤"(空气滤清器、机油滤清器、柴(汽)油滤清器)在发动机上的作用、以及"三滤"的清洁对发动机的影响与损坏.同时就如何正确选择、使用、保养"三滤",延长发动机寿命,阐述自己的见解.     

让中职语文课“活”在生活中

中职生普遍感到基础文化课学得很苦却收获很少,对语文课感兴趣的同学越来越少,厌学情绪较浓。面对中职语文教学的现状,对中职语文教学从内容到形式进行贴近生活的探究。在教学过程中强调融入生活的生活化教学,变"应试语文""课堂语文"为"生活语文",对提高中职语文教学质量非常重要。     

"My secret life": the emergence of one gay man''s authentic identity

Assessment of gestational age is one of the most important aims of ultrasonography in obstetrics. As pregnancy progresses, influences of factors which makes the growth of the fetuses different, cumulates. It has been revealed that the earlier in pregnancy ultrasound examination was performed, the better precision in the assessment of gestational age was obtained. The best precision is encountered when Crown-rump length is measured between 7-9 weeks of gestation. Until the end of the half of pregnancy, biparietal measurement allows for better assessment of gestational age than the date of the last menstrual period. As pregnancy progresses the variability of the measurements increases, reaching 7 week variation at term. The aim of this study is the assessment of fetal sacral length ultrasonographic measurements in the calculation of gestational age. The investigated group consists of 453 pregnant women between 16-41 weeks of physiological gestation.     

"Looking back, what period of your life brought you the most satisfaction"

Common myths hold that old persons are fixated on childhood memories, that they believe that youth is the best part of life, and that old age contains few satisfactions. Berkeley Older Generation Study members, when asked on two occasions during old age (M ages = 69.8 and 82.7) to name the periods of their lives that brought them the most and the least satisfaction, dispelled these myths. The thirties and forties were popular choices for periods of great satisfaction, but childhood and adolescence were quite unpopular for these old persons. "Right now" was named more often than any other life period as most satisfactory. Men and women did not differ in life periods nominated, but they did differ in the reasons given for their choices. Each period provided its own pattern of satisfactions and disappointments, and strong individual differences were apparent.     

Differential dream recall frequency as a component of "life style".

The relation of dream recall frequency (DRF) to variables associated with field independence and motivation to recall was investigated. Recallers have lower M thresholds and do better on the Embedded Figures Test than nonrecallers. High recallers feel more in control of their own lives than low recallers and have less curiosity into noninterpersonal matters. No differences were found in intolerance of ambiguity, total or interpersonal curiosity, future-orientation, or leisure-activity preferences. These findings, in conjunction with what is already known about the correlates of differential DRF, suggest the existence of 2 life styles: the "inner-acceptant," of which high DRF is a component and the "inner-rejectant," of which low DRF is a component. (19 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The life of Maurice Virenque (1888-1946). From "Gueules Cassées" to cervicofacial facelift

Neuroimaging and neuropsychological studies have consistently implicated dorsolateral prefrontal cortex as abnormal in schizophrenia. However, other areas of frontal cortex have received far less attention. In particular, few studies have examined orbital frontal regions with other than olfactory tests. In the present study we wished to assess the functional capability of orbital frontal cortex using a test developed by Bechara et al. (1994) that assesses a subject's capacity to acquire a preference through reward and punishment, using a gambling task that involved gains and losses of play money. Thirty normal subjects and 12 patients with schizophrenia (three undifferentiated, eight paranoid, one schizoaffective) comprised the sample in the present study. We found that patients with schizophrenia exhibited a pattern of findings similar to that of normals and dissimilar to that of patients with known orbital frontal damage. In our study, both normal subjects and schizophrenic patients chose most frequently from decks of cards in which there were frequent rewards and infrequent penalties, as might be expected on the basis of operant conditioning literature. We also found that performance on this task was not correlated with tests of working memory or long-term memory, suggesting that the development of a preference may occur implicitly. Our findings also argue against a general deficit in schizophrenia, as performance on the gambling task appeared relatively uncompromised.     

Stressful life events, bipolar disorder, and the "kindling model".

A common misconception is that bipolar disorder is an endogenous process. However, previous research suggests a role for life events in the onset of and recovery from bipolar episodes. Yet there remains some question as to whether the relationship between life events and onset changes over the course of the disorder as a result of the number of episodes an individual has experienced. Using a rigorous interview measure of stressful life events, the current study tested the kindling model (R. M. Post, 1992), which theorizes that major life events play a diminishing role over the course of illness in bipolar patients. Analyses revealed that the number of episodes experienced does not appear to have a significant effect on bipolar 1 patients' reactivity to external stressors. In addition, the results suggest that a more complex relationship exists among age, stress, and onset of new episodes than can be adequately explained by the kindling model. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of "real life" assessments of management potential with situational exercises, paper-and-pencil ability tests, and personality inventories.

In a 2-day assessment program evaluated the degree of active participation in the group situational exercises, and administrative and decision-making ability of 47 members of a large national marketing organization. Paper-and-pencil ability tests and personality inventories were less clearly related to assessments of managerial potential. Ratings of management potential developed from a careful review of company personnel records were as highly correlated with the assessment center data as were overall ratings from the 2-day program, except for ratings dealing with interpersonal behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Extraterrestrial life: life on Mars--then and now

The recent claim to have discovered evidence of extraterrestrial life on a meteorite from Mars is not compelling, but the study nevertheless has useful heuristic value.     

Suicide, life course, and life story

This article explores how a life-course perspective and narrative methodology can be used to study risk factors for late-life suicide. A life-course approach to aging and suicide requires consideration of age as both social and personal construction. "On-" and "off-time" events and their impact on adjustment are used to illustrate these social and personal constructions. Cohort, period, and historical events have potentially profound effects on risk for suicide, yet the study of these effects is difficult because they are so often confounded in longitudinal study. Lifelong personality characteristics that are not life-threatening in earlier life may be of greater risk in later life depending on life circumstances such as physical dependencies. A life-story or narrative approach offers an alternative method for incorporating these complicated factors when studying late-life suicide. The psychological autopsy can be considered a type of "narrative" used by various individuals to gain understanding about a suicide.